A cube with sides of 3 cm is cut into cubes with sides of 1 cm.
Which row gives the total surface area of all the small cubes and their surface area to volume ratio?
total surface area 54 cm2\mathrm{cm^{2}}cm2; ratio 2 cm−1\mathrm{cm^{-1}}cm−1
total surface area 162 cm2\mathrm{cm^{2}}cm2; ratio 6 cm−1\mathrm{cm^{-1}}cm−1
total surface area 162 cm2\mathrm{cm^{2}}cm2; ratio 2 cm−1\mathrm{cm^{-1}}cm−1
total surface area 54 cm2\mathrm{cm^{2}}cm2; ratio 6 cm−1\mathrm{cm^{-1}}cm−1
36 exam-style questions on Edexcel GCSE Chemistry 10.5 Bulk and surface properties of matter including nanoparticles, covering 10.5.1 Nanoparticles: size, uses and risks and 10.5.2 Comparing and selecting materials. Each one has a worked solution and a mark scheme showing where the marks go.